Three-phase combined type mutual inductor

The utility model discloses a three-phase combined type mutual inductor, which relates to the technical field of mutual inductors and comprises an insulating outer shell, a mounting seat is fixed at the bottom end of the inner side of the insulating outer shell, a first sliding groove is arranged on the surface of the upper end of the mounting seat, and second sliding grooves are arranged on the left side and the right side of the first sliding groove and on the surface of the mounting seat. Two clamping seats are connected in the first sliding groove in a sliding mode, a first rotating shaft is rotatably connected to the bottom end of the mounting seat, a rotating gear and a third bevel gear are sequentially fixed to the outer wall of the first rotating shaft from top to bottom, a driving rack is connected in the second sliding groove in a sliding mode, and the driving rack is meshed with the rotating gear. The voltage transformers and the current transformers can be conveniently combined in different number